The deck is purely Len and Kaito. This deck attempts to run powerful attackers at every level to just keep knocking out characters faster than they can bring them back. Unfortunately, the assist line from those 2 are mostly garbage, so the back stage focuses on utility with Patassier and Underhanded. If you're not comfortable with this, splashing in Ni-No-Sakura Fan Dance would give reasonable offensive power, while Bad Boy adds a bit of staying power for your characters. The goal is to get an empty slot somewhere on their board at level 2 or 3, and tear a backstage character to shreds.